Carbon plate super shoes can carry serious price tags (the $450 Adizero Adios ... Instead, the shoes are decked out with akoya pearls, which are much rarer than freshwater pearls.

Japan's akoya oysters have been preëminent among cultured pearls ever since Kokichi Mikimoto first established the industry in the early part of this century. But since 1994, something has been ...

And the price of larger stones has risen by as much ... The size of the pearl largely depends on the size of the mollusk. For example, akoya pearls can only grow about 9 or 10 millimeters in ...